Ufly Controller and BCM for Modulex EXT
CHAPTER 6: BOILER COMMUNICATIONS MODULE (BCM)
OMM-0159_A_A
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6.4 BCM Control Of Variable Speed Primary Pump
The BCM has a 0-10 V output that can be used to control a Variable Speed primary pump. There
is no connection on the Modulex controller for pump mains power. Pump mains power must be
supplied externally, as directed by pump manufacturer’s instructions.
6.4.1 Pump Control Wiring
The 0-10 V signal wire must be wired to terminals 4 and 5 of terminal block Y2 in the Input/Output
box. See Figure 6-8. The positive wire connects to terminal 5 and the negative to terminal 4.
Figure 6-8: Pump Wiring - 0-10V Analog Control
6.4.3 Pump Control Operation
The voltage control signal to the pump is configured as follows:
1. Access
Device Management
from Main Menu; select
hcm
>
Parameter Settings
Summary of Contents for AERCO EXT
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